The Polyflex core is a fully flexible metalized polyester duct consisting of 3 layers of 12 micron metalized polyester giving it a total thickness of 39 micron. A high carbon spring steel wire is encapsulated in these layers to give the flexible its body. It is a cheaper option to Aluflex ducts.
INSULATION
The Polyfex core is wrapped in 200 gram/m2 polyester fiber insulation which is held in place with a metalized polyester jacket. The metalized jacket also gives it an extra vapour barrier.
JACKET
The metalized polyester jacket is constructed with 2 layers metalized polyester.
APPLICATION
The aluflex flexible ducts are used in ventilation, air conditioning, and air handling systems where high mechanical strength, temperature and fire resistance is required.
TECHNICAL DETAILS
Temperature range: -30° C to +100° C
Air velocity:Up to 30m/s Note:Â At these velocities sound through the flex could be generated. Recommended velocity is 4m/s.
Operating Pressure: Max 2000Pa
Bent radius: 1.5D (1.5 times the diameter)
Diameter range: 102mm to 559mm
Fire Safety:Metalized polyester ducts has not been fire rated.
Lenghts: Standard lengths are 10 meters, other lengths are available on request.
Packaging: The Polyflex plain is shrunk down from 10m to 30cm and the Polyflex insulated is shrunk down to 100cm and then placed in a colour coded plastic bag.
Pressure drop: Download PDF to see pressure drop curve.